Acetylene-gas-generating lamp.



No. 633,656. Patented Sept. 26, |899.

LA. MUSHER.

ACETYLENE GAS GENEBATING LAMP- (Application tiled Nov. 21, 189B.)

(No Model.)

UNrrnn STATES amen.

PATENT .TCIIN A. MOSIIER, OF CHICAGO, ILLINOIS, ASSIGNOR TO TIIE ADAMS &VESTLAKE COMPANY, OF SAME PLACE.

ACETYLEN E-GAS-G EN ERATING LAIVI P.

SPECIFICATION forming part of Letters Patent No. 633,656, datedSeptember 26, 1899.

Application filed November 21,1898. Serial No. 697,072. lNo model.)

.7'0 @ZZ whom, it muy concern:

Be it known that I, JOHN A. MCSHER, a citizen of the United States ofAmerica, and a resident of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements inAcetylene-Lamps, of which the following is afull, clear, and exactdescription, and which are illustrated in the accompanying drawings,forming a part thereof.

It is found in practice that in that type of acetylene-lamps in whichthe generator is combined with the lamp the parts become so highlyheated from the chemical action that the gas is delivered to theburner-tip at a very high temperature, and in consequence it burns witha far less luminous flame than when cool. This is understood to be duein part to the fact that when heated it clogs the burner-ti p veryrapidly and also that it carries out of the generating-chamber a veryconsiderable percentage of steam.

The object of my invention is to overcome this diliiculty by providingmeans for cooling the gas after it leaves the generating-chamber andbefore it reaches the burner-tip, so that whatever moisture it may beloaded with will be condensed and the temperature will be so low thatthe tendency to clog the tip will be greatly reduced. I accomplish thisobject by providing a cooling and condensing chamber intermediate of thegenerator and the llame-chamber and which has a very extended case, andpreferably this chamber is formed around the Water-chamber, so that thegas passes over surfaces one of which is water-cooled and the other ofwhich is exposed to the cooling influence of the atmosphere.

The invention is fully illustrated in the accompanying drawings, inWhich- Figure l is a vertical central section of a bicycle-lampembodying it. Fig. 2 is a plan section on the line 2 2 of Fig. l, andFig. 3 is a plan section on the line 3 3 of Fig. l.

While I show in the drawings a bicycle-lamp which exempliiies myinvention, it is obvious that it may be applied as well to house orother lamps, especially those which contain their own generators.

The lamp shown is provided with a liamel chamber A of any preferred formand a burner B, which also forms no part of the invention. It has awater-chamber C, which, as shown, is directly below the dame-chamber,and a generating-chamber D at the bottom of the lamp-body. At d is shownthe water-passage connecting the water-chamber with the generating-chamber, and at ca valve for controlling this passage.

The water-chamber is made with two side and bottom walls E F, which arespaced apart to form therebetween a chamber II. In the drawings I showthis chamber as being coextensive with the side walls of thewater-chamber and with all but a small central portion of its bottom. Itis obvious that it may be either less or more extensive than as shownwithout departing from the scope of the invention. A tip K leads fromthe generatingchamber through the outer bottom Wall F of thewater-chamber into the cooling and condensing chamber H, and a tube Mleads from the latter chamber to the burner-tip. For convenience andcheapness of construction I prefer to run this tube through thewaterchamber C, as shown.

While the Width of the chamber I-I at any part is small, it isnevertheless of very considerable capacity, and the gas passes throughit slowly and in a very thin sheet. In passing through this chamber thegas travels over cool surfaces of very considerable area, the wall Ebeing cooled by the water in the chamber C and the wall F being cooledby the surrounding atmosphere. Then the lamp is used upon a bicycle, thecooling effect of the atmosphere is very pronounced, as the movement ofthe bicycle causes a very rapid change of the air, and itconsequentlycarries off a large amount of heat. The gas leaves the chamber H quitecool, and the moisture is practically all condensed out of it and findsits way back into the generating-chamber through the pipe K. Thetendency of the fiame to lose its luminosity is entirely obviated, andthedeposit of solid matter Within the tube is so far prevented that itceases to become an annoyance.

Although in the form of lamp shown the most convenient location for thecooling and IOO - ating-chamber, a burner, and a chambered jacket forthe water-chamber having its outer wall exposed to the atmosphere, itschamber forming apart of the gas-passage from the generator to theburner and being in communication at its bottom with thegeneratingchamber, whereby the water 0f condensation may pass backtherefrom into the latter chamber, substantially as and for the purposedescribed. v

2. In an acetylene-lamp, the combination with a generator and burner, ofa waterchamber above the generating-chamber and having double walls,spaced apart, its outer wall being exposed to the atmosphere, a tubeleading from the generator to the chamber inclosed between the doublewalls, and a tube leading therefrom to the burner.

3. In an acetylene bicycle-lamp, in combination, a generating-chamber, awater-chamber above the generating-chamber, and a ilame chamber abovethe waterchamber, such three chambers being vertically alined, thewaterchamber having double walls spaced apart to form a gas-coolingchamber whereby the gas is passed about the waterber above thegenerating-chamberand spaced l whereby water is conveyed from the one tothe other and its flow is retarded by an excess of gas-pressure, acasing inclosing the watercharnber and forming with the walls thereof acooling-chamber for gas, such casing being exposed to the atmosphere,connection between the generating-chamber and the cooling-chamber andopening through the bottom of the latter, and a pipe leading from thecooling-chamber.

6. In an acetylene-lamp, in combination, a i

generator, a water-chamber above the generating-chamber, a burner, and achambered jacket for the water-chamber, forming a part of thegas-passage from the generator to the burner, and such chamber beingwithout communication with the water-chamber.

' 7. In an acetylene-lamp, the combination with a generator and burner,of a waterchamber above the generating-chamber and having double walls,spaced apart, a tube leading from 1he generator to the chamber inclosedbetween the double walls, and a tubeV leading therefrom to the burner,there being no communication between the water-chamber and thegas-passage.

JOHN A. MOSI-IER. IVitnesses:

PAUL SYNNESTVEDT, HESTER B. BAIRD.

